liquid

liquid — noun

IPA/ˈlɪkwɪd/
KK[lˈɪkwəd]IPA/ˈlɪkwɪd/
  • liquidsingular
  • liquidsplural

1. a material such as water or oil that you can pour and that takes the shape of wh

1.nounA2
Definition

a material such as water or oil that you can pour and that takes the shape of whatever container it is in, unlike a solid which keeps a fixed shape or a gas which spreads to fill a room

Example

Omar spilled a clear liquid on the kitchen floor while cleaning the counter.

The nurse told Jin to drink more liquid after his surgery to stay hydrated.

collocation: drink liquid

Common collocations
  • drink liquid
  • pour liquid
  • spill liquid
  • thick liquid
  • sticky liquid
  • clear liquid
Synonyms
  • fluid

    broader term — includes gases and any substance that flows

  • beverage

    restricted to liquids you drink

  • solution

    a liquid mixture where one substance is dissolved in another

Antonyms
  • solid

    a substance with a fixed shape that does not flow

  • gas

    a substance that expands freely to fill any space

Usage Note

Used as an uncountable noun when referring to the general idea of a liquid substance. Used as a countable noun when referring to specific types (e.g., 'oils and other liquids').

Common Mistakes

I need to drink more liquids every day.
I need to drink more liquid every day.
When speaking generally, 'liquid' is uncountable. Use the plural 'liquids' only when naming different types, like 'water and other liquids.'

2. a speech sound made by partly closing the mouth with the tongue so that air flow

2.nounC1
Definition

a speech sound made by partly closing the mouth with the tongue so that air flows around the sides of the tongue, such as the sounds 'l' and 'r' in English

Example

Manuela learned in her phonetics class that 'l' and 'r' are liquid consonants.

grammar: 'liquid' used before 'consonants'

Christopher struggled to pronounce the liquid sound at the start of the word 'rainbow'.

Common collocations
  • liquid consonant
  • liquid sound
  • pronounce a liquid
Synonyms
Antonyms
  • stop consonant

    a consonant where airflow is fully blocked, such as 'p', 'b', 't', 'd'

  • plosive

    a sound produced by stopping airflow then releasing it suddenly

Usage Note

This is a technical linguistic term. Most English learners do not need to learn it — it is mainly used by language teachers and speech therapists to describe how 'l' and 'r' sounds are produced.

liquid — adjective

IPA/ˈlɪk.wɪd/
KK[lˈɪkwəd]IPA/ˈlɪk.wɪd/

Word family

Synonym discussion

Sense: noun/1

All three words can describe substances that flow, but they are used in different situations. 'Fluid' is the broadest term — it includes both liquids and gases, and is common in scientific and technical writing. 'Beverage' is restricted to liquids that people drink, such as tea, juice, or soda — you would never call motor oil a 'beverage.' 'Solution' refers to a liquid mixture in which one substance (such as salt or sugar) has been fully dissolved in another (usually water). In everyday speech, 'liquid' is the most natural choice for any pourable substance. For example: 'Water is a liquid that everyone needs to survive.' If you need a broader scientific term, use 'fluid': 'Air is a fluid, just like water.' If you are referring to something you drink, use 'beverage': 'This café offers a wide range of hot beverages.' And if you mean a dissolved mixture, use 'solution': 'The nurse prepared a saline solution to clean the wound.'

Common collocations

Nouns

  • liquid level
  • liquid temperature

Adverbs

  • almost liquid
  • nearly liquid
  • thickly liquid

Phrases

  • in liquid form
  • in liquid state

Prepositions

  • in liquid form
  • in a liquid state

Etymology

LatinOld FrenchEnglish

The word 'liquid' comes from the Latin 'liquidus,' meaning 'fluid, flowing, or liquid,' which itself comes from the Latin verb 'liquere,' meaning 'to be fluid, to melt, or to be clear.' It entered English in the 14th century through Old French 'liquide,' originally referring to things that flow like water. The financial sense (assets easily turned into cash) developed in the early 19th century, and the sense of smooth movement or sound emerged in literary usage during the 19th century.

First known use

14th century

14th century, in the meaning defined at sense 1 Noun